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SGSiteGraph

papercall.io

PaperCall.io

Last scanned Jul 27, 2026, 12:43 PM

86

Overall score

Great

Summary

This website uses Google Analytics hosted on Google Cloud. SEO is fair (60/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Missing meta description.

United States
Hosted on Google Cloud

Products & pricing

Product and pricing information published in this site's own structured data.

Pricing Guide

$499 USD

Top issues to fix

8 issues found · 2 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

  • Multiple H1 headings found

    SEO

    Keep a single H1 per page and demote the others to H2/H3.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • Missing OpenGraph tags

    SEO

    Add og:title/og:description/og:image so shared links render a proper preview card.

+2 more issues — details in the sections below.

60

SEO

6 issue(s) found

100

Performance

751 ms

90

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
PaperCall.io
Description
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0, user-scalable=no
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
og:description
og:type
og:url

Twitter Card

twitter:card
summary
twitter:title
PaperCall.io - The easy way to manage your call for papers
twitter:description
PaperCall enables event organizers to easily manage their call for papers and talk submissions, without relying on tools such as Google Forms, WuFoo Forms, and other less than perfect systems.

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
Google Cloud
CDN provider
IP address
35.227.194.161
ASN
AS396982 (GOOGLE-CLOUD-PLATFORM - Google LLC, US)

DNS records

TypeValue
A
  • 35.227.194.161
AAAA
MX
  • alt4.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • alt3.aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • aspmx.l.google.com
TXT
  • google-site-verification=e9ZBHIpaOhDCRH50jvXTVz7D-kY_mfoMyqca9Re1WB4
  • v=spf1 include:mail.zendesk.com ?all
  • google-site-verification=17amCZkerSFPTf_s8u_FDY2Cliu9AaFWcTJyTZS6r5A
  • v=spf1 a include:_spf.google.com ~all
NS
  • ns4.dnsimple-edge.org
  • ns3.dnsimple-edge.io
  • ns1.dnsimple-edge.com
  • ns2.dnsimple-edge.net
CAA
CNAME
  • papercall.io
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
www.papercall.io
Valid from
Jul 23, 2026
Valid to
Oct 21, 2026
Days until expiry
85
SAN domains
www.papercall.io

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyMissing
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: none · 1 cookie(s) observed

Content & assets

Headings

H1 3 · H2 3 · H3 0

Links

23 internal · 7 external · 6 broken

Images

9 total · 0 missing alt

Scripts / Styles

10 scripts · 2 stylesheets

JS / CSS size

925 KB · 216 KB

Page size

19.8 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing meta description
  • Missing canonical link
  • Multiple H1 headings found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://papercall.io
Final URL
https://www.papercall.io/
HTTP status
200
HTTP version
HTTP/2
Response time
751 ms
HTML size
19.8 KB
Redirect chain
https://papercall.io → https://www.papercall.io/

See something wrong on this report? Request a correction

Frequently asked questions

What technology does papercall.io use?
papercall.io is built with Ruby on Rails, Google Analytics.
Is papercall.io secure (HTTPS)?
Yes. papercall.io uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 21, 2026.
Who hosts papercall.io?
papercall.io is hosted on Google Cloud.
What is papercall.io's SEO score?
papercall.io scored 60/100 for SEO in the latest analysis (fair).
What is papercall.io's overall website score?
papercall.io has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.
What products does papercall.io offer?
papercall.io offers Pricing Guide.